[forge-issues] [JBoss JIRA] (ROASTER-117) Cannot set supertype with nested generics

[Kai Müller (Jira)]

    [ https://issues.jboss.org/browse/ROASTER-117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13684436#comment-13684436 ] 

Kai Müller commented on ROASTER-117:
------------------------------------

Hi,
it seems this is an issue with your test program. You executing the split on the first generic part, which is  "java.util.Map<String,SomeOtherClass>". If you then execute a split on this and try to convert it to a simple type, which is "java.util.Map<String" --> that's no valid java.
Your program can be fixed, by adding another getGenericsTypeParameter and using the new value in the for loop:

{code:java}
      String type = "SomeClass<java.util.Map<String,SomeOtherClass>>";     
      String typeD = Types.stripGenerics(type);
      String simpleTypeDName = Types.toSimpleName(typeD);
      String typesGeneric = Types.getGenericsTypeParameter(type);
      String typesGenericMap = Types.getGenericsTypeParameter(typesGeneric);
      for (String typeP : typesGenericMap.split(","))
      {
         System.out.println(typeP);
         Types.toSimpleName(typeP.trim());
      }
{code}

Best regards,
Kai


> Cannot set supertype with nested generics
> -----------------------------------------
>
>                 Key: ROASTER-117
>                 URL: https://issues.jboss.org/browse/ROASTER-117
>             Project: Roaster
>          Issue Type: Bug
>          Components: JDT
>    Affects Versions: 2.19.4.Final
>            Reporter: Stefan Brötz
>            Priority: Major
>
> Calling javaClassSource.setSuperType("SomeClass<java.util.Map<String,SomeOtherClass>>") throws a java.lang.StringIndexOutOfBoundsException:
> java.lang.StringIndexOutOfBoundsException: String index out of range: -15
> 	at java.lang.String.substring(String.java:1967)
> 	at org.jboss.forge.roaster.model.util.Types.isGeneric(Types.java:317)
> 	at org.jboss.forge.roaster.model.util.Types.toSimpleName(Types.java:192)
> 	at myTest(...)



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